3D printer Ergo M4 Handguard Extension Rail • made with CR-10 Mini・Cults
RAIL ID : r/ar15
M4 Extended Fore-End Rail – Cadex Defence
Question for everyone. Are we seeing Ergo rail extensions show up anywhere else beyond MEU? Building out an M4A1 and I'm a sucker for the Block II/ I.5 look. : r/MilitaryARClones